I imagine you could roam around the subreddits and check out what's up.
I also imagine that (at least this is my own thought) that you not only would be interested in talking about math with others, but also talking with good people that are easygoing, chill, etc.
I went to undergrad in Math and believe me, it wasn't easy to find the "right crowd" in my program.
I used the same approach: turn knob, save, see what the bytes look like.
For one of the Reason instruments that I was thinking of decoding, I encountered a similar problem. Even saving the same patch with different filenames resulted in different looking bytes.
This is outside my own scope but try graphing these patch files out, color coding and seeing what patterns you can notice.